Radiator.



2 lSHEETS-SHEET Patented June s, 1915.

R. J. KIENDL.

' RADIATOR.

APPLICATIQN FILEDy JULY I8, 191 l.)

R. 1. KIENDL. RADIATOR. APPLICATION FlLED JULY 18, l9ll.

Patented June 8, 1915.

2 SHEETS-SHEET 2.

riff l f Jaz/'emr' @4i/7186 ROBERT J.. KIENDL, 0F BUFFALO, YORK.

sanieren'.

Specification of Letters Patent.

Patented J une 8, 1915.

application sied Juiyie, 1911. serial No. 639,113.

To all whom it may concern:

Be it known that I, ROBERT J. KIENDL, a citizen of the United States,residing at Buffalo, in the county of Erie and State of New York, haveinvented new and useful Improvements in Radiators, of which thefollowing is a specification.

Tlplis invention relates to a radiator which is more particularlydesigned for cooling the water of automobile gas engines although thesame may also be used for other purposes.

It is the purpose of this invention to produce a radiator of thischaracter which can be manufactured at low cost, which will cool thewater thoroughly and rapidly and which is not liable to leak under thesevere usage to which such radiators 'are subjected.

In the accompanying drawings consisting of Q sheets: Figure l is a frontelevation of an automobile radiator embodying my invention. Fig. 2 is afragmentary vertical longitudinal section thereof in line 2-2, Fig. l,on an enlarged scale. Fig. 3 is a vertical cross section in line 3-3,Fig. 2, on

a still larger scale. Fig. l is a fragmentary horizontal section, on anenlarged scale, in line 4l4, Fig. 2. Fig. 5 is an oblique section, on anenlarged scale, in line 5-5,.

Fig. 2. l

Similar letters of reference indicate corresponding parts throughout theseveral views.

l represents the upper inlet header' or water box, 2 the lower outletheader or water box, and 3, 3 the upright side pieces connecting theupper and lower headers. l Between the side pieces the upper an lowerheaders are connected by a plurality of upright water tubes 4, whichembody my invention and which are separated by intervening air passagesEach of these tubes is preferably constructed as follows: G, 6 representtwo upright walls constructed preferably of sheet metal strips andarranged parallel with each other in a direction fore and aft of theradiator. At their upper and lower ends these side walls are preferablyconnected with; the bottom 7 of the upper header and the top 8 of thelower header by means of outwardly turned horizontal flanges 9 arrangedon the ends of said walls and secured by solder or otherwise to saidbottom and top, as shown in Fig. 3. At their vertical longitudinal edgesthe side walls of the tube 'are connected with each other by binders orstrips 10 each of which is preferably constructed of sheet metal andseamed or interlocked with a corresponding pair of longitudinal edges ofthe side. walls, as shown in' Figs. 4 and 5; A

Each of the side walls of the tube is provided with a plurality of waterchannels or grooves 11 on the inner side of the wall which arepreferably formed by providing this wall with a plurality of outwardlyprojecting hollow beads or corrugations 12. The channels of one wallofthe tube incline in one direction and the channels of the other wallincline in the other direction. The relative arrangement of thesechannels is such that each of the channels of one wall, except thosenear the ends thereof, is horizontally and transversely in line andcommunicates with the adjacent ends of the channels in the channels ofthe other wall.

The ends of each channel arepreferably eni larged, as shown at 13, inFigs. 2 5 so as to prevent the flow yof water from being retarded as itpasses around the edge of the partition from a channel on one side ofthe partition to a channel on the opposite side thereof. f

Between the walls of each tube is arranged a partition or web 14C whichis preferably constructed of a strip of sheet metal and secured in placeby solder or other means, or the same may be held in place by beingclamped between the side walls of the tube. This partition terminatesatfits vertical longitudinal edges short of the vertical longitudinaledges of the walls -so that it eX- tends across the inner sides of thechannels or grooves of the walls intermediate the ends thereof andthereby interrupts communication between the central parts of thechannels of both walls but permits these chan- 'nels to communicate witheach other at their duits communicate at their upper and lower ends withtheupper and lower headers so that the water is conducted from the upperto the lower header' and exposed in thin or small streams to thecooling' effect of the air which contacts with the outer side of thewalls of the tube. The water is thus quickly and thoroughly cooled orreduced in temperature inasmuch as it is compelled to take a tortuouscourse in passing through the tube, thereby subjecting all the water fora considerable length of time to the cooling action of the air beforeescaping to the outlet header.

The corrugation in the walls of the tubes may be produced by-stamping atlow cost from the same dies and are simply reversed to produce rightsand lefts having their channels inclihing in .opposite directions,thereby reducing the cost of manufacture.

Inasmuch as only the longitudinal edges of the walls need to beconnected and this can be reliably done by means of the binding strips,the possibility of leakage is reduced to a minimum.

I claim as my invention:

A radiator comprising upper and lower headers and a plurality of tubularsections connecting said headers, each of said sections having two sideWalls which are connected at their vertical edges, and a partitionarranged between said Walls and stopping at its vertical edges short ofthe vertical edges of said walls so as to form connecting passages atopposite vertical edges of said Walls, each of said walls being providedon its inner side with a plurality of inclined channels the upper onesof which extend :umane from the upper header to connecting passages atone of the vertical edges of said walls, the lower ones extending fromlthe lower header to connecting passages at the other vertical edges ofsaid walls, and the intermediate ones extending from the connectingpassages at one of the vertical edges of the Walls to the connectingpassages at the other vertical edges of said Walls, and the channels ofone of said wallsinclining in a direction opposite to the channels ofthe other wall ,and the two sets of channels communicating with leachother lat their extremities, whereby the water in passing from the upperto the lower header is caused to move in a substantially spiral path andsuccessively along opposite sides of said partition and each of saidchannels being provided adjacent to the vertical edges of the partitionwith an enlargement.

Witness'my hand this 15th day of July,

ROBERT J. KIENDL. Witnesses:

THEO. L. Porr,

E. M. GRAHAM.

